Dredging Technique for Process-control Computer System

The dredging technique is discussed in this paper.Some basic problems in dredg-ing technique,such as definition,classification and detection of block,dredging method and the relationship between dredging technique and system desigr,are explained system atically.Finally,an example of application of the dredging technique is introduced.It isapplied to a process-control computer system for supervision and control of a 300MW turbo-generator at a heat power station.